56504145403 has 16 divisors (see below), whose sum is σ = 63058733280. Its totient is φ = 50377739776.

The previous prime is 56504145349. The next prime is 56504145409. The reversal of 56504145403 is 30454140565.

It is a de Polignac number, because none of the positive numbers 2^k-56504145403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56504145409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055125 + ... + 1107382.

It is an arithmetic number, because the mean of its divisors is an integer number (3941170830).

Almost surely, 2^56504145403 is an apocalyptic number.

56504145403 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

56504145403 is a deficient number, since it is larger than the sum of its proper divisors (6554587877).

56504145403 is a wasteful number, since it uses less digits than its factorization.

56504145403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162606.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 56504145403 its reverse (30454140565), we get a palindrome (86958285968).

The spelling of 56504145403 in words is "fifty-six billion, five hundred four million, one hundred forty-five thousand, four hundred three".